scholarly journals Differentiation and Range Expansion of North American Squash Bee, Peponapis pruinosa (Apidae: Apiformes) Populations Assessed by Geometric Wing Morphometry

2009 ◽  
Vol 102 (1) ◽  
pp. 60-69 ◽  
Author(s):  
Inge Bischoff ◽  
Stefan Schröder ◽  
Bernhard Misof
Keyword(s):  
North American ◽  
Range Expansion ◽  
Peponapis Pruinosa

scholarly journals First Occurrence of the Grey Fox, Urocyon cinereoargenteus, in New Brunswick: a Climate-change Mediated Range Expansion?

2008 ◽  
Vol 122 (2) ◽  
pp. 169
Author(s):  
Donald McAlpine ◽  
James D. Martin ◽  
Cade Libby
Keyword(s):  
Climate Change ◽  
New Brunswick ◽  
Threatened Species ◽  
North American ◽  
Range Expansion ◽  
Range Extension ◽  
Urocyon Cinereoargenteus ◽  
Subadult Male ◽  
Warming Climate ◽  
First Occurrence

The first occurrence in New Brunswick of the Grey Fox (Urocyon cinereoargenteus), a threatened species in Canada, is documented based on a 4.3 kg subadult male trapped in the southwestern corner of the province. This is an approximate range extension of 135 km from the most northerly Maine occurrence and may reflect a larger North American range expansion underway since 1930-40, perhaps in response to warming climate.

scholarly journals Late Pleistocene range expansion of North American topminnows accompanied by admixture and introgression

2019 ◽  
Vol 46 (9) ◽  
pp. 2126-2140 ◽  
Author(s):  
David D. Duvernell ◽  
Eric Westhafer ◽  
Jacob F. Schaefer
Keyword(s):  
Late Pleistocene ◽  
North American ◽  
Range Expansion

scholarly journals Serial founder effects and genetic differentiation during worldwide range expansion of monarch butterflies

2014 ◽  
Vol 281 (1797) ◽  
pp. 20142230 ◽  
Author(s):  
Amanda A. Pierce ◽  
Myron P. Zalucki ◽  
Marie Bangura ◽  
Milan Udawatta ◽  
Marcus R. Kronforst ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Differentiation ◽  
Genetic Drift ◽  
North American ◽  
Range Expansion ◽  
Dispersal Ability ◽  
Founder Effects ◽  
Long Distance ◽  
Mobile Species ◽  
High Dispersal

Range expansions can result in founder effects, increasing genetic differentiation between expanding populations and reducing genetic diversity along the expansion front. However, few studies have addressed these effects in long-distance migratory species, for which high dispersal ability might counter the effects of genetic drift. Monarchs ( Danaus plexippus ) are best known for undertaking a long-distance annual migration in North America, but have also dispersed around the world to form populations that do not migrate or travel only short distances. Here, we used microsatellite markers to assess genetic differentiation among 18 monarch populations and to determine worldwide colonization routes. Our results indicate that North American monarch populations connected by land show limited differentiation, probably because of the monarch's ability to migrate long distances. Conversely, we found high genetic differentiation between populations separated by large bodies of water. Moreover, we show evidence for serial founder effects across the Pacific, suggesting stepwise dispersal from a North American origin. These findings demonstrate that genetic drift played a major role in shaping allele frequencies and created genetic differentiation among newly formed populations. Thus, range expansion can give rise to genetic differentiation and declines in genetic diversity, even in highly mobile species.

Testing the geographical dimensions of genetic diversity following range expansion in a North American snake

2018 ◽  
Author(s):  
Christian L Cox ◽  
Joel F Stringer ◽  
Matthew A Moseley ◽  
Paul T Chippindale ◽  
Jeffrey W Streicher
Keyword(s):  
Genetic Diversity ◽  
North American ◽  
Range Expansion

Rapid range expansion in the Great Plains narrow-mouthed toad (Gastrophryne olivacea) and a revised taxonomy for North American microhylids

2012 ◽  
Vol 64 (3) ◽  
pp. 645-653 ◽  
Author(s):  
Jeffrey W. Streicher ◽  
Christian L. Cox ◽  
Jonathan A. Campbell ◽  
Eric N. Smith ◽  
Rafael O. de Sá
Keyword(s):  
Great Plains ◽  
North American ◽  
Range Expansion

Signatures of range expansion and erosion in eastern North American trees

2010 ◽  
Vol 13 (10) ◽  
pp. 1233-1244 ◽  
Author(s):  
Helen T. Murphy ◽  
Jeremy VanDerWal ◽  
Jon Lovett-Doust
Keyword(s):  
North American ◽  
Range Expansion
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